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H. HENNIG. CLOSED CONTINUOUS SYSTEM FOR GENERATING STEAM.

No. 595,101. Patented Dec. 7, 1897.

WITNESSES:

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GLOSED CONTINUOUS SYSTEM FOR GENERATING STEAM.

No. 595,101. Patented De0.7, 1897.

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Unrrrnn STATES PATENT OFFICE...

HENRY HENNIG, OF PATERSON, JERSEY.

CLOSED CONTINUOUS SYSTEM FOR GENERATING STEAM.

SPECIFICATION forming part of Letters Patent No. 595,101, dated December7, 1897". Application filed August 11, 1897- Serial No. 647,811. (Nomodel.)

To all whom, it may concern.-

Be it known that I, HENRY HENNIG, a citizen of the United States,residing at Paterson, in the county of Passaic, in the State of NewJersey, have invented certain new and useful Improvements in ClosedContinuous Systems for Generating Steam, of which the following is aspecification.

This invention relates to a closed continuous system for generatingsteam; andthe object of the same is to provide an attachment forsteam-radiators of dwellings, business buildings, and the like whichworks effectively for the production in a short period of time ofsutficient heat for the room in which the radiator is located, so thatthe invention is applicable to steam-radiator systems which are alreadyfitted into a buldin g and connected with a boiler in the cellar.

To these ends my invention consists of a water'heating chamber, anexpansion-coil arranged above the same, a superheating-coi1 arrangedbelow the water-heating chamber and connected with the expansion-coil,and pipes leading to the water-heating chamber and from thesuperheating-coil for connection with a steam-radiator, all as will bemore particularly described hereinafter and then pointed out in theclaims.

In the accompanying drawings, Figure 1 is a sectional side elevation ofmy apparatus. Fig. 2 is a vertical cross-section of the generator properof the attachment. Fig. 3 is a horizontal section on the line 3 S ofFig. 2, and Fig. 4: is a horizontal section on the line 4 a of Fig. 2.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A indicates a steam-radiator of any suitabletype, which may be detached from the ordinary heating apparatus in thebuilding, or it may be entirely detached therefrom. Connected with thelower portion of the radiator A by means of a pipe B is a watenheatingchamber 0, through which passes vertical tubes 0. This water-heatingchamber is arranged in horizontal position within a suitable casing D,provided with a perforated or other suitable cover D, said casing D alsocontaining a suitable gas or other burner E, which is arranged below thewater-heating chamber 0. Access may be had to the interior of the casingD for lighting the gas through the medium of a suitable door E.

Connected with the water-heatin g chamber 0 at the center of its top isa horizontal expansion-coil F, which by means of a pipe F is connectedwith a superheating-coil F arranged below the water-heating chamber, andwhich superheatingcoil is in turn connected, bymeans of a pipe B, withthe lower portion of the radiator A. The pipe B, being for conductingthe superheated steam into the radiator, is attached to the radiator atthe point above that from which the pipe B, for conducting off the waterof condensation, is con nected. Projecting from the steam-inlet pipe Binto the open base portion of the radiator is a perforated steam-jetnozzle G, the perforations g of which deliver steam upwardly into theradiatortubes, as shown. At a point adjacent to the water-heatingchamber the passage through the pipe B is controlled by means of acheck-valve 13 which, while it permits water to flow into thewater-heating chamber, prevents the water flowing back through themedium of the valve-seat 1), against which the said valve acts and isforced by the back pressure.

The attachment proper may be attached directly to the radiator in thesame room therewith, as shown in dotted lines in Fig. 1, or it may bearranged in the room or cellar below.

The operation of the apparatus is as follows: A body of water suffieientto fill the open base portion of the radiator and also the waterheatingchamber 0 is placed in the same, so that the level of the water will notrise into the expansion-coil F. The valve t',controlling the steam-inletpipe B,is now opened and the gas-burner E lighted. The heat of thegasfiame now gradually heats up the water in the heating-chamber O,which expands into the expansion-coil F, where, by reason of the smalldiameter of the coil and the heat which rises through the tubes 0 of thewater-heating chamber, the water is converted into steam. From theexpansion-coil F the steam passes into the coil F ,arranged below thewater-heating chamber 0, where it is subjected to the direct heat of theflame and converted into superheated stea1n,\vhicl1 passes through thesteam-inlet pipe B to the steam-jet nozzle 0, arranged in the radiator,from whence it is emitted in steam-jets into the said radiator. Theradiator now gradually becomes heated and the heat is imparted to theroom in which it is arranged. When all, or about all, of the water inthe water-heating chamber has been converted into steam, (the back ducedpressure and automatically opens the check-valve B so that an additionalsupply of water is fed into the water-heating chamber. In this way theexhaust and supply of water from and to the water-heating chamber isintermittently carried on so long as the heating-chamber is subjected tothe action of the heating-flame. After the water-heating chamber and thelower portion of the radiator have been supplied with feed-water, it

will be found in practice that it is unnecessary to replenish the samefor a considerable length of time, as the same Water is used over andover again.

Having thus described my invention,what I claim is- 1. In a closedcontinuous system for generating steam, the combination with a radiator,of a steam-generating attachment con,

nected therewith, the same consisting of an outlet-pipe attached to theradiator, a waterheating chamber connected with said pipe, anexpansion-coil arranged above the waterheating chamber and connectedwith the same, a superheating-coil arranged below the waterrheatingchamber and connected with the expansion-coil, and a steam-inlet pipec011- necting the superheating-coi-l with the radiator at a point abovethe said outlet-pipe of the radiator, substantially as set forth.

2. A steam generating attachment for steam-radiators, consisting of aWater-heating chamber, an expansion-coil connected With theWater-heating chamber and arranged above it, a superheating-coilconnected with the expansion-coil and arranged below the water-heatingchamber, and inlet and outlet pipes connected respectively with thewaterheating chamber and the superheating-coil, substantially as setforth.

3. A steamgenerating attachment for steam-radiators, consisting of awater-heating chamber, a pipe leading into the same and provided with acheck-valve adapted to close the passage in said pipe against backpressure, an expansion-coil connected with the Water heating chamber andarranged above the same, a superheating-coil arranged below thewater-heating chamber and connected with the expansion-coil, and asteampipe leading from the superheating-coil, substantially as setforth.

4. A steam generating attachment for steam-radiators, consisting of awater-heating chamber provided with vertical tubes extending through thesame, an expansion-coil arranged above the water-heating chamber andconnected wit-h it, a superheating-coil arranged below the water-heatingchamber and connected with the expansion-coil, pipes connectedrespectively with the water-heating chamber and thesuperheating-coil,and means arranged below the superheating-coil forsubjecting said parts to heat, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

HENRY HENNIG.

Witnesses:

GEO. F. WHEELOCK, GEO. W. JAEKEL.

